Machine for making paper.



' Patented Feb. 25, I902.

H. PARK-ER.

MACHINE FOR MAKING PAPER.

4 (Application file i June 19, 1900.) I (No Model.) 2 Shoots-Sheet I,

In we tar T/a'twess as r Patented Feb. 25, I902; H. PARKER.

MACHINE FOR MAKING PAPER.

(Application. filed June 19, 1800.]

(No Model.) 2 Sheets-Sheet 2.

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Unrrnn STATES PATENT OFFICE.

.l-IOW'ARD PARKER, OF BELLOVVS FALLS, VERMONT.

MACHINE FOR MAKING PAPER.

SPECIFICATION forming part of Letters Patent No. 693,895, dated February 25, 1902.

Application filed June 19, 1900. Serial No. 20,851. (No model.)

To all whmn it may concern:

Be it known that I, HOWARD PARKER, of Bellows Falls, in the county of Windham and State of Vermont, (having a post-office address at Bellows Falls, Vermont,) have invented certain new and useful Improvements in Machines for Making Paper, of which the following, when taken in connection with the accompanying drawings, is a description, whereby any one skilled in the art may make and use the same.

While my invention may be used to form pulps commonly used in the manufacture of paper into a continuous length of material of a consistency which may be readily finished by the ordinary mechanism used in the process of paper-making, it is more especially adapted to be used in connection with chemically-prepared pulpsas,for instance, wood or ground pulp. In the use of such pulps it is often desirable, after the stuff, so called, has been ground or'otherwise prepared in suitable machines, to put it in such form that it may be immediately used to produce a finished paper or may be worked into a convenient form for future use in making the finished paper.

The object of my improvement is to provide a machine which will very rapidly pick up the flakes of the finely-divided stuff, extract the greater portion of the moisture which is in the material, and deliver a continuous semiplasticweb of the'material in such form that it may, upon being subjected to the action of the proper mechanism, be rolled or cut into sheets suitable for transportation or storing.

The special object of my invention is to pro vide a rotary paper-making cylinder which will do this work, picking up the particles of the stuff and delivering them during its revolution.

To this end my invention consists in the device as a whole, in the several parts making up the structure, and in the details of such parts and their combination, as hereinafter described, and more particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a view in side elevation of the machine, parts being broken away to better show the construction. Fig. 2 is a cross-sectional View. Fig. 3 is a dc tailed sectional view, on an enlarged scale, of the paper-making cylinder. Fig. 4 is a side view of the paper-making cylinder, showing the manner in which the screen is applied to the roll and other details of construction. Fig. 5 is a cross-sectional view through one of the journalssupporting the paper-making roll.

In the accompanying drawings the letter a denotes the tank, in which the pulp or stuff is contained and picked up by the paper-making roll 0. This tank Ct is rectangular in shape and is provided at either end with journal-boxes a, in which the paper-making roll is mounted and adapted to rotate. Stuffing-boxes a are arranged at the outer ends of these journal-boxes and prevent the escape of any liquid about the shaft of the papermaking roll. 1

A breasting a is arranged lengthwise of the tank a, and the pulp or stuff is introduced to the tank from any suitable source at the rear of this breasting. Of course it is understood that the material when entering the tank is in a very finely-divided state suspended in some liquid, as water. The breasting a does not rise to the full height of the tank, and the material entering at the rear soon'rises and floods over it into the papermaking chamber 1). This chamber b has preferably slopingside walls b, and centrally located within it is the paper-making roll a.

The roll a is made up of a cast-metal frame composed of a number of outwardly-extending webs 0, arranged about a central core and forming a support for the screen, hereinafter described. These webs c, radiating from this central core, are curved at their outer ends to meet the periphery of the roll and form a series of pockets or compartments extending the entire length thereof. A special object is attained by curving the outer ends of the radially-disposed arms or webs, as by so doing a means is provided for collecting any moisture that leaches through the roll, and such moisture is immediately withdrawn from contact with the stuff carried' upon the roll and cannot again come into contact with it. The compartments 0 formed between the several'webs, have no connection with each other, but each has a port 0 arranged through the central core.

Disks d, 1

forming end walls arranged at each end of the roll, close the ends of the several compartments. The central core extends beyond these end walls (I and forms the shaft upon which the roll turns. A gear 6 is connected to this extension at one end, and this gear, meshing with asecond gear mounted in proper relation to it and driven from a suitable source of power, serves to rotate the roll 0 at a proper speed.

The roll 0 has a tubular member f. This tubular member is provided with a series of longitudinal compartments ff f extending throughout the length of it and provided .at its end or ends with connections whereby the several compartments f f f are connected with suitable blowers for exhausting air or introducing it. The compartments f f are in connection with the exhaust-pipe g, while the compartmentf is connected with the blower-pipe 9. From this arrangement it will be seen that any air or water which is in the compartments ff will be Withdrawn from the tubular shaft, at the same time permitting air to be forced into the compartment f Furthermore, each of these compartments has ports piercing the wall of the tubular shaft and adapted to cooperate with ports in the rotary frame to subject the several compartments of said frame to the different actions-suction and blowerproduced by any suitable suction-and-blower mechanism and made possible through these connections of the tubular shaft. While the several compartments are divided from each other, each has apertures which, cooperating with the ports in the tubular core of the papermaking roll, permit the blowers to withdraw or introduce air into the several compartments formed by the radial webs c, and the air thus withdrawn from the compartments cooperates with the perforated surface of the roll and forms what is substantially a means for maintaining the pulp upon the surface of the roll. In the same way the air which is introduced to the compartments by a blower cooperates with the compartments and roll and effects a means for removing the web of material which has been formed on the roll.

To provide a comparatively even peripheral surface to which the wire gauze or screen may be applied, a series of grooves or notches are cut in the outer edges of the several webs radiating from the tubular core, and in these grooves are located rings 0 which may be secured in any suitable manner. After the rings are in place a spiral groove or thread is cut about the webs and inserted rings, as shown in Fig. at of the drawings, and in this groove is wound and secured a metallic band. The wire-gauze 72. is drawn tightly over the form thus made and securely fastened in place.

doctor is hinged, as at i, and lies with its outer end in close proximity to the roll and substantially tangential thereto. A shield 70, hinged at covers and incloses the doctor and a portion of the roll, preventing foreign material from coming in contact with the pulp-web which has been formed. The hinging of this shield 70 and the doctor t' permits their being swung back to allow the removal of the roll or easy access to it when in its operating posit-ion. Suitable packings are provided at the joints, where the doctor and shield rest upon the edges of the tank to prevent the escape of the liquid.

The operation of the device is obvious. The tank being filled with the pulp or stuff, the blowers are set at work and the roll a rotated in the direction of the arrow. From the arrangement of the ports 0 and the apertures in the compartments of the tubular shaft it will be seen that as soon as one of the compartments 0 of the paper-making roll is connected with the compartment f of the tubular shaft thestnff will be drawn against the periphery of the roll 0 and held there under suction action. Of course there being agreat amount of moisture in the stuff the former will be drawn into the compartments c and as the roll revolves any moisture which has thus collected will find its way into the compartment f and run off at the end of the tubular shaft. As the roll rotates still farther, carrying with it the material which has been picked up under the suction.

action, the ports 0 come into registering positions with the aperture formed in the wall of the compartment f As this compartment is filled with air under pressure, an air-pressure will also be produced in the compartments 0 while they are passing the aperture,

and the material which is being carried upon the periphery of the roll will thus be lifted out of its close contact with the wire-gauze, so that the doctor will more easily catch and deflect it. partment begins to take up its materialon a horizontal coincident with the axle of the roll and continues to pick upmaterial until ithas traveled around the lower half of the roll in the illustration herewith or has at least-rotated a sufficient distance to carry the ports 0 beyond the action of the compartment f. The water which has during this action collected in the several compartments now iinds its way into the compartment f under the action of gravity as well as the suction action,

and as the material is carried farther upon from the stuff, especially when the latter It is to be noted that each coin-- IIO passes around on the roll to a position where it is above the level of the liquid in the tank, and hence no more water is drawn intothe stuff while the water therein is being drawn out. Therefore the one suction action when applied in this peculiar manner constitutes twoindependentmeans,oneforpickingup the stud during a certain portion of the revolution of the roll and another for withdrawing the liquid from the stuff, and it will be clear that the air-blast in the compartment fconstitutes yet another independent means and serves to deliver the partially-dried stuff from the roll to the doctor. I-

While the device herein shown and described does not include carrier-felts and presser and drying rolls, it is obvious that these devices being all common and well known in the art might be applied to this machine without altering or affecting the scope of my invention,and while the machine as I shown will collect the flaky particles of the pulp and deliver them in a continuous sheet of proper consistency to be handled the abovenamed devices might be usedwith advantage under certain conditions.

The details which have been described may be varied to a considerable extent without affecting the scope of my invention, the essential features of which are to provide a per- .forated paper-making cylinder having a series of longitudinal compartments arranged about a hollow core and providing means, such as suction and blower action, for picking up the stuff duringa portion of the revolution of the roll and positively removing and delivering the stuff substantially free from moisture.

In Fig. 5 of the drawings there is illustrated a special form of bearing which is well adapted fornse in a machine of this class. The box containing this hearing is connected with the main tank, and thus the bearing is always immersed in liquid. The contacting portions of the bearing,which, as shown in the drawings,consistof anumber of bars of metal, are arranged belowthe center of thebearingshaft and are of soft metal, as brass or bronze. By this construction the roll-shaft continually makes for itself. a new and perfectly-alined bearing, and all liability of stains which would result from theuse of an oil-bearing is obviated.

, I claim as my improvement 1. In combination in a paper-making machine, a revolving paper-making roll having a series of continuous longitudinal compartments radially disposed, a shaft on which said roll is supported,means forcollecting the stuff on the roll during a portion of its revolution,

means for removingliquid from said stud during another portion of its revolution, and means for delivering said stuff during subsequent portions of its revolution, said three means being independent of each other.

2. In combination in a paper-making machine, a paper-making roll having compartments, and means for rotating it, a tubular shaft centrally arranged with relation to the roll and having a series of compartments formed therein by longitudinal partitions, ports connecting the several compartments of the roll with those of the shaft at points during the rotation of the former, means for col- ,lecting the stuff on the roll during a portion of its revolution, means for removing liquid fromsaid stuff, and means for delivering said.

stuff during subsequent portions of the revolution of the roll.

3. In combination, a tank, a paper-making roll revolving therein and having a hollow core, a series of longitudinal compartments formed within the roll about the hollow'core, a tubular shaft arranged within the hollow core and provided with compartments, apertures connecting the several compartments,

. ranged with relation to the roll and provided with compartments, one of the latter forming a connection to exhaust the air from the compartments of the roll, a second shaftcompartment adapted to receive water collected in said roll-compartments, and a third shaftcompartment adapted to conduct air under pressure to the compartments of the roll as it revolves.

* 5. In combination, apaper-makingrollhaving a series of substantially'radially disposed webs forming compartments, means for exhausting and means for introducing air to the several compartments, and means coincident with the radially-disposed webs for collecting moisture entering the compartments.

6. In combination, a paper-making roll consisting of a metallic frame comprising a core provided with outwardly-extending Webs having their outer ends curved to'provide pockets adapted to collect moisture, a tubular shaft on which said core revolves, compartments in the revoluble frame and tubular shaft, and ports arranged to subject the said compartments of ,the revoluble frame to suetion and blower action during its revolution.

7. In combination with a paper-making roll consisting of a revoluble frame and having longitudinal compartments, a tubular shaft supporting said revoluble frame and provided at one side with a suction compartment through which air is exhausted from the compartments of the, roll, at the opposite'side with a compartment through which air is introduced to the compartments of the roll, and a compartment located between said oppositelydisposed compartments through which Water, collected in the several compartments of the its roll, is discharged, and ports connecting the I and a third adapted tointrodnce air to thescvseveral compartments of the shaft with those eral compartments ofthe revoluble frame as it of the revoluble frame. I rotates about the tubular member, and ports 8. In combination with-apaper-making roll connecting the compartments of the tubular 5 comprising a revoluble frame having com- I member with those of the revoluble frame. 15

partments, a tubular member centrally arranged with relation to said revoluble frame HOWARD R and provided with three separate longitudinal Witnesses: compartments, one adapted to conduct ex- WILLIAM H. BARKER, 1o haust-air, another adapted to conduct water, LUITGARD MORBA. 

